Results 11 to 20 of about 7,317,302 (267)

Finite-difference solutions of tenth-order boundary-value problems [PDF]

open access: yes, 1994
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.In this thesis finite difference methods are used to obtain numerical solutions for a class of high-order ordinary differential equations with applications ...
Siddiqui, Aijaz Ahmad
core   +7 more sources

The Investigation of Lead Borate Glass Composites for Boron Neutron Capture Therapy Shielding

open access: yesAtom Indonesia, 2022
In this work, we studied the lead borate glass composites to optimize its shielding properties of thermal neutrons and gamma-rays for Boron Neutron Capture Therapy (BNCT) applications.
M. S. Ali   +5 more
doaj   +1 more source

Hazardous radiation protective glasses for medical and research laboratories

open access: yesHeliyon, 2023
In the current study, the bismuth oxide (Bi2O3) content was inter-substituted with gadolinium oxide (Gd2O3) in sodium borate glass. Glass sample density and molar volume values show a reverse trend. The optical transparent radiation shielding glasses are
R. Ruamnikhom   +6 more
doaj   +1 more source

Radiation shielding potential of ultra-high strength concrete from agro-industrial waste [PDF]

open access: yesNuclear Technology and Radiation Protection
Ultra-high strength concrete produced with agro-residual wastes and industrial by-products were tested for radiation shielding capacity by measuring the linear attenuation coefficient, half value layer and tenth value layer.
Rajkumar Deivendiran   +2 more
doaj   +1 more source

The role of Ag2O incorporation in nuclear radiation shielding behaviors of the Li2O–Pb3O4–SiO2 glass system: A multi-step characterization study

open access: yesOpen Chemistry, 2023
We report the gamma-ray shielding properties of five different lithium silicate glasses based on the (40 − x) Li2O–10Pb3O4–50SiO2 nominal composition. Transmission factor values and some basic shielding parameters such as linear (µ) and mass attenuation ...
ALMisned Ghada   +8 more
doaj   +1 more source

Lead-borate glass system doped with Sm3+ ions for the X-ray shielding applications

open access: yesResults in Physics, 2022
The impact of varying Sm2O3 content on radiation shielding properties of 15PbF2: (65-x) B2O3: 20K2O:xSm2O3 (where 0 ≤ x ≤ 1.5 mol %) glass samples, was investigated by studying their physical, radio-luminescence and X-ray-shielding characteristics.
S. Mukamil   +11 more
doaj   +1 more source

Influence of boundary layer transition on the trajectory optimisation of a reusable launch vehicle [PDF]

open access: yes, 2014
Based on flight experience from the Space Shuttle programme, it is well known that mis-prediction of the effects of boundary layer transition represents one of the highest technical risks when designing a Reusable Launch Vehicle.
Edmondo Minisci   +7 more
core   +4 more sources

Tunable p-p Interactions Along Linear Chains Control Metavalent Bonding in Chalcogenide Heterostructures. [PDF]

open access: yesAdv Sci (Weinh)
Substitution of Sr at the Pb site within an atomic plane of PbTe perturbs the p–p hopping network. Since Sr does not support the p–p interaction key to metavalent bonding along (‐Pb‐Te‐) chains, long‐range electronic charge transfer in response to displacement of Pb is stalked at the Sr site.
Verma S, Biswas K, Waghmare UV, Rao CNR.
europepmc   +2 more sources

The effect of replacing sand by iron slag on physical, mechanical and radiological properties of cement mortar

open access: yesHBRC Journal, 2017
In the present study, the effects of replacing sand by high percentages of basic-oxygen furnace slag on the compressive strength, bulk density and gamma ray radiation shielding properties of mortar have been investigated.
Ahmed S. Ouda, Hamdy A. Abdel-Gawwad
doaj   +1 more source

A research on the gamma ray attenuation characteristics for real bone and manganese substituted artificial bone dust

open access: yesCumhuriyet Science Journal, 2020
This research focalized on the gamma ray attenuation charesteristics of real bone and manganese substituted Nano hydroxyapatite artificial bone dusts. The current samples were excited with using 59.5 keV photons emitted from an 241Am annular radioisotope
Erhan Cengiz   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy